Same way as any other file, with unlink. Your computer doesn't care what language the filename is in.
$ perl -Mstrict -MPath::Tiny -wE '
my $filename = "شاب مراد كالعادة يصرع";
path( $filename )->spew("Hello, world");
say qx{cat "$filename"};
unlink $filename;
say qx{ls "$filename"};
'
Hello, world
ls: شاب مراد كالعادة يصرع: No such file or directory
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Perhaps you meant something else? Maybe you need to learn about character encoding? See for example perlunitut, or this node.
The way forward always starts with a minimal test.